AFAICT there is exactly one requirement that applies to scripts. The
requirement not really testable. I don't see the point in having this
product class.
I suggest removing the product class and replacing the SHOULD requirement
with something non-normative, e.g.:
When the argument is provided script writers are strongly encouraged to
ensure that they have specified (before invoking send()) the
Content-Type header via setRequestHeader().
If you do this then perhaps the first paragraph in "Conforming user agent"
needs an update, too; it currently says:
A user agent must behave as described in this specification in order to
be considered conformant even when faced with non-conforming scripts.
Perhaps s/ even when faced with non-conforming scripts//.
--
Simon Pieters